TLS Online TPP Program

#Question id: 14972


Although O side chains are readily recognized by host antibodies, gram negative bacteria may thwart host defenses by 

#Unit 2. Cellular Organization
  1. Rapidly changing the nature of their O side chains to avoid detection
  2. Generating rigid O side chains to avoid detection
  3. Impairing phagocytosis
  4. Cleaving their O side chains to avoid detection

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TLS Online TPP Program

#Question id: 1192

#Unit 4. Cell Communication and Cell Signaling

In the NF- κB signaling pathway, which of the following molecules is downstream of I- κB kinase?

TLS Online TPP Program

#Question id: 1960

#Unit 4. Cell Communication and Cell Signaling

Which statement about the complement system is true?

TLS Online TPP Program

#Question id: 11844

#Unit 6. System Physiology – Plant

The following statements are made to describe the biosynthetic pathway of IAA;

a)  IPA pathway involves a deamination reaction to form IPA, followed by a decarboxylation reaction to form indole-3-acetaldehyde (IAld) and then oxidized to IAA by a specific dehydrogenase

b) IAN pathway is similar to the IPA pathway, except that the order of the deamination and decarboxylation reactions is reversed, and different enzymes are involved

c) IAM pathway  involves the two enzymes  tryptophan monooxygenase and IAM hydrolase

d) In the IAN pathway, tryptophan is first converted to indole-3-acetaldoxime and then to indole-3-acetonitrile. The enzyme that converts IAN to IAA is called nitrilase

Which of the following is the correct  statements  of about the biosynthesis of  IAA?

TLS Online TPP Program

#Question id: 11143

#Unit 7. System Physiology – Animal

In a resting potential, an example of a cation that is more abundant as a solute in the cytosol of a neuron than it is in the interstitial fluid outside the neuron is ________.

TLS Online TPP Program

#Question id: 11764

#Unit 10. Ecological Principles

The mathematical model for geometric growth of a population is identical to the model for exponential growth, except that __________ in the geometric model.